AV-27F703
AV-27F713
AV-27F803
SERVICE ADJUSTMENTS
ADJUSTMENT PREPARATION
1. You can make the necessary adjustments for this unit with
ADJUSTMENT EQUIPMENT
either the Remote Control Unit or with the adjustment tools
and parts as given below.1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
2. Adjustment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting3. Signal generator (Pattern generator);NTSC=
values which set the screen to its optimum condition may4. Remote control unit
differ from the initial settings.5. TV audio multiplex signal generator.
3. Make sure that AC power is turned on correctly.6. Frequency counter
4. Turn on the power for set and test equipment before use, and
start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise specified, prepare the most suitable receptionKEY ASSIGNMENT OF REMOTE CONTROL UNIT
or input signal for adjustment.
(RM-C325G)
6. Never touch any adjustment part which are not specified in the
list for this adjustment - variable resistors, transformers, initial
POWER
setting value, etc.
7. Presetting before adjustment.DISPLAY
Unless otherwise specified in the adjustment instructions, preset
the following functions with the remote control unit:
User menu preset valueSLEEPNUMBER
TIMER
MENU ITEMPRESET
VIDEO
VIDEO STATUSSTANDARDSTATUSMUTING
MEMORY
BASS, TREBLE, BALANCECENTERFUNCTION
FUNCTION
1/2
/
HYPER SURROUNDOFF
EXIT
TINT, COLOR,
CENTERPIP OFF
PICTURE, BRIGHT, DETAIL
MTSSTEREO
ADJUSTMENT ITEMS
% CHECK OF B1 POWER SUPPLY% ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
% ADJUSTMENT OF VCOWHITE BALANCE(High Light & Low Light) adjustment
MAIN VCO adjustmentPIP WHITE BALANCE(High Light) adjustment
SUB VCO adjustmentSUB BRIGHT adjustment
RF. AGC adjustmentSUB CONTRAST adjustment
% FOCUS adjustmentSUB COLOR adjustment
% ADJUSTMENT DEF CIRCUITSUB TINT adjustment
V. HEIGHT / V. CENTER(4:3) adjustment% ADJUSTMENT OF MTS CIRCUIT
V. HEIGHT / L. LIN(16:9) adjustmentMTS INPUT LEVEL adjustment
H. POSI, H. SIZE & SIDE PIN [ (4:3) &(16: 9) ] adjustmentMTS SEPARATION adjustment
PIP DISPLAY POSI adjustment% HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
12No. 52005 |
ACEC
JVC
